Dental screening is part of the mandatory physical health screening conducted on all military applicants. The condition of your teeth can definitely prevent you from joining the military. The Military.com website lists several jaw and teeth-related conditions that disqualify you. Additionally, the Army website lists "Dental" on its partial list of disqualifying factors. The Navy also includes veneers and ornamental dentistry as disqualifying conditions.

Disqualifiers

Many of the medically-related dental disqualifiers involve jaw conditions. Temporomandibular and myofascial disorders are common examples. Mandible protraction is another condition noted by Military.com. Just generally unhealthy teeth and complex dental systems are disqualifying because they impede your ability to eat a normal diet. You also can't enlist with orthodontic appliances, such as braces, though retainers are acceptable.